Global Patent Index - EP 2071420 B1

EP 2071420 B1 20130612 - Leveling control system for heavy equipment and associated method

Title (en)

Leveling control system for heavy equipment and associated method

Title (de)

Balancierungssteuerungssystem für schweres Fahrzeug und Verfahren

Title (fr)

Système de commande de maintien à niveau pour engin lourd et procédé associé


EP 2071420 B1 20130612 (EN)


EP 08021488 A 20081211


KR 20070129044 A 20071212

Abstract (en)

[origin: EP2071420A2] A leveling control system and method for heavy equipment is provided. The leveling control system for heavy equipment, in which a lower frame having a traveling means and an upper frame are combined together by a tilting means, includes a sensor unit, provided in the equipment, for measuring twist angles of the lower frame and the upper frame against a reference horizontal surface and a traveling speed of the equipment, and detecting working state information of working devices; a control unit for receiving the twist angles, the traveling speed, and the working state information, calculating a correction angle for the leveling control of the upper frame, and generating a control signal for instructing an operation of an actuator in accordance with the correction angle; and a driving unit for performing the leveling through the actuator in accordance with the control signal received therein. The control unit is provided with an auto leveling mode module for performing the leveling against a reference horizontal surface, a re-leveling mode module for performing the leveling against the reference horizontal surface in a standstill state of the equipment for a limited time, and a track leveling mode module for performing the leveling against the lower frame.

IPC 8 full level

G05D 1/08 (2006.01); B60G 21/00 (2006.01); B62D 33/063 (2006.01); B62D 55/116 (2006.01)

CPC (source: EP US)

B62D 33/063 (2013.01 - EP); B62D 55/116 (2013.01 - EP); G05D 1/0891 (2013.01 - EP); B60G 2300/09 (2013.01 - EP); Y10S 37/907 (2013.01 - EP); Y10T 74/11 (2015.01 - EP US); Y10T 74/111 (2015.01 - EP US)

Designated contracting state (EPC)


DOCDB simple family (publication)

EP 2071420 A2 20090617; EP 2071420 A3 20120606; EP 2071420 B1 20130612; CA 2646115 A1 20090612; CA 2646115 C 20161011; JP 2009144502 A 20090702; JP 5231191 B2 20130710; KR 100967214 B1 20100707; KR 20090061992 A 20090617; US 2009151483 A1 20090618; US 2012283920 A1 20121108; US 8195367 B2 20120605; US 8437925 B2 20130507

DOCDB simple family (application)

EP 08021488 A 20081211; CA 2646115 A 20081203; JP 2008314982 A 20081210; KR 20070129044 A 20071212; US 201213477686 A 20120522; US 32637508 A 20081202